org.apache.log4j.varia
Class LevelRangeFilter

java.lang.Object
  org.apache.log4j.spi.Filter
      org.apache.log4j.varia.LevelRangeFilter

All Implemented Interfaces:

OptionHandler

public class LevelRangeFilter
extends Filter

This is a very simple filter based on level matching, which can be used to reject messages with priorities outside a certain range.

The filter admits three options LevelMin, LevelMax and AcceptOnMatch.

If the level of the LoggingEvent is not between Min and Max (inclusive), then Filter.DENY is returned.

If the Logging event level is within the specified range, then if AcceptOnMatch is true, Filter.ACCEPT is returned, and if AcceptOnMatch is false, Filter.NEUTRAL is returned.

If LevelMinw is not defined, then there is no minimum acceptable level (ie a level is never rejected for being too "low"/unimportant). If LevelMax is not defined, then there is no maximum acceptable level (ie a level is never rejected for beeing too "high"/important).

Refer to the setThreshold method available to all appenders extending AppenderSkeleton for a more convenient way to filter out events by level.

Author:

Simon Kitching, based on code by Ceki Gülcü

Field Summary

Fields inherited from class org.apache.log4j.spi.Filter

ACCEPT, DENY, NEUTRAL, next

Constructor Summary

LevelRangeFilter()

Method Summary

int	decide(LoggingEvent event) Return the decision of this filter.
boolean	getAcceptOnMatch() Get the value of the AcceptOnMatch option.
Level	getLevelMax() Get the value of the LevelMax option.
Level	getLevelMin() Get the value of the LevelMin option.
void	setAcceptOnMatch(boolean acceptOnMatch) Set the AcceptOnMatch option.
void	setLevelMax(Level levelMax) Set the LevelMax option.
void	setLevelMin(Level levelMin) Set the LevelMin option.

Methods inherited from class org.apache.log4j.spi.Filter

activateOptions

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

LevelRangeFilter

public LevelRangeFilter()

Method Detail

decide

public int decide(LoggingEvent event)

Return the decision of this filter.

Specified by:

decide in class Filter

Parameters:

event - The LoggingEvent to decide upon.

Returns:

decision The decision of the filter.

getLevelMax

public Level getLevelMax()

Get the value of the LevelMax option.

getLevelMin

public Level getLevelMin()

Get the value of the LevelMin option.

getAcceptOnMatch

public boolean getAcceptOnMatch()

Get the value of the AcceptOnMatch option.

setLevelMax

public void setLevelMax(Level levelMax)

Set the LevelMax option.

setLevelMin

public void setLevelMin(Level levelMin)

Set the LevelMin option.

setAcceptOnMatch

public void setAcceptOnMatch(boolean acceptOnMatch)

Set the AcceptOnMatch option.